217
FNCA52 TJSJ 061930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST SAT JUN 6 2026
DISCUSSION
RH % VALUES FOR TODAY ARE FORECAST TO REMAIN SLIGHTLY ABOVE THE
THRESHOLD LIMITING THE WEATHER CONDITIONS TO FAVOR WIDESPREAD
FIRE DANGER THREAT ALONG SOUTHERN COASTAL PLAINS. WINDS WILL
REMAIN FROM THE SOUTHEAST UP TO 15 MPH WITH GUSTY WINDS ALONG
COASTAL ZONES. BASED ON THE FORECAST WEATHER CONDITIONS, WE
EXPECT A LOW FIRE DANGER RISK. PLEASE STAY TUNE FOR FURTHER
UPDATES.
PRZ014-070800-
SOUTHEAST COASTAL PLAINS-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 10 10
TEMP (24H TREND) 73 (-1) 90 (+1) 73 91
RH % (24H TREND) 97 (+4) 59 (+2) 95 54
WIND 20FT/EARLY(MPH) E 13 E 17 E 14 E 14
WIND 20FT/LATE(MPH) E 11 SE 17 E 12 E 18
MIXING HGT(FT-AGL/MSL) 4700 5050
TRANSPORT WND (MPH) E 17 E 18
VENT RATE (KT-FT) 70500 80800
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-070800-
SOUTHERN HILLS-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 40 10 10
TEMP (24H TREND) 69 (-3) 86 (+1) 70 87
RH % (24H TREND) 100 (+5) 64 (-2) 98 60
WIND 20FT/EARLY(MPH) E 11 E 13 E 12 E 12
WIND 20FT/LATE(MPH) E 11 SE 13 E 12 SE 14
MIXING HGT(FT-AGL/MSL) 5050 5770
TRANSPORT WND (MPH) E 16 E 17
VENT RATE (KT-FT) 70700 86550
DISPERSION 5 5
DSI 3 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-070800-
NORTH COASTAL PLAINS-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 10 20
TEMP (24H TREND) 72 (-2) 90 (0) 73 91
RH % (24H TREND) 100 (+5) 59 (-6) 98 57
WIND 20FT/EARLY(MPH) E 12 E 14 E 12 E 13
WIND 20FT/LATE(MPH) SE 10 E 18 E 12 E 19
MIXING HGT(FT-AGL/MSL) 5420 5320
TRANSPORT WND (MPH) E 15 E 15
VENT RATE (KT-FT) 70460 69160
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-070800-
NORTHERN HILLS-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 10 60 10 40
TEMP (24H TREND) 70 (-1) 89 (+1) 70 89
RH % (24H TREND) 100 (+2) 63 (-1) 99 58
WIND 20FT/EARLY(MPH) E 10 E 11 E 10 E 12
WIND 20FT/LATE(MPH) SE 6 E 16 E 6 E 16
MIXING HGT(FT-AGL/MSL) 5490 6570
TRANSPORT WND (MPH) E 10 E 13
VENT RATE (KT-FT) 49410 72270
DISPERSION 5 5
DSI 2 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-070800-
WEST COAST-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 0 50 30 50
TEMP (24H TREND) 72 (-2) 91 (0) 73 92
RH % (24H TREND) 100 (+6) 62 (-1) 97 59
WIND 20FT/EARLY(MPH) E 11 E 14 E 16 E 14
WIND 20FT/LATE(MPH) E 13 E 14 E 12 E 13
MIXING HGT(FT-AGL/MSL) 4170 5240
TRANSPORT WND (MPH) SE 14 E 14
VENT RATE (KT-FT) 50040 62880
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-070800-
EASTERN INTERIOR-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 20 20
TEMP (24H TREND) 70 (-3) 88 (+1) 71 88
RH % (24H TREND) 100 (+4) 63 (-2) 100 60
WIND 20FT/EARLY(MPH) E 12 E 16 E 13 E 14
WIND 20FT/LATE(MPH) E 12 SE 16 E 13 E 14
MIXING HGT(FT-AGL/MSL) 5580 6030
TRANSPORT WND (MPH) SE 17 SE 16
VENT RATE (KT-FT) 83700 84420
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-070800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 20 20
TEMP (24H TREND) 69 (-2) 83 (+2) 69 83
RH % (24H TREND) 100 (+2) 70 (-7) 100 67
WIND 20FT/EARLY(MPH) E 10 SE 13 E 11 E 12
WIND 20FT/LATE(MPH) E 10 SE 13 E 11 E 13
MIXING HGT(FT-AGL/MSL) 4760 4280
TRANSPORT WND (MPH) SE 20 SE 16
VENT RATE (KT-FT) 80920 59920
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-070800-
CENTRAL MOUNTAIN RANGE-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 10 70 10 40
TEMP (24H TREND) 67 (-3) 87 (+4) 67 88
RH % (24H TREND) 100 (+4) 66 (-3) 99 61
WIND 20FT/EARLY(MPH) SE 6 E 10 SE 9 E 10
WIND 20FT/LATE(MPH) E 6 SE 10 E 6 E 11
MIXING HGT(FT-AGL/MSL) 5540 7540
TRANSPORT WND (MPH) SE 12 SE 12
VENT RATE (KT-FT) 55400 75400
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-070800-
CAYEY MOUNTAIN RANGE-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 20 10
TEMP (24H TREND) 69 (-2) 83 (+1) 70 83
RH % (24H TREND) 100 (0) 70 (-2) 100 66
WIND 20FT/EARLY(MPH) E 9 E 12 E 10 E 11
WIND 20FT/LATE(MPH) E 9 E 12 E 10 E 12
MIXING HGT(FT-AGL/MSL) 4840 5000
TRANSPORT WND (MPH) SE 17 E 17
VENT RATE (KT-FT) 72600 75000
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-070800-
VIEQUES-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 50 20 30
TEMP (24H TREND) 75 (-2) 88 (+1) 75 88
RH % (24H TREND) 91 (+2) 61 (-7) 90 61
WIND 20FT/EARLY(MPH) E 16 E 18 E 17 E 17
WIND 20FT/LATE(MPH) E 17 E 16 E 17 E 17
MIXING HGT(FT-AGL/MSL) 3640 3610
TRANSPORT WND (MPH) SE 21 E 15
VENT RATE (KT-FT) 65520 46930
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-070800-
CULEBRA-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 10 20
TEMP (24H TREND) 77 (-2) 90 (+2) 77 90
RH % (24H TREND) 91 (+4) 60 (-9) 89 58
WIND 20FT/EARLY(MPH) E 16 E 18 E 18 E 17
WIND 20FT/LATE(MPH) E 17 E 16 E 18 E 16
MIXING HGT(FT-AGL/MSL) 3500 3620
TRANSPORT WND (MPH) SE 23 E 17
VENT RATE (KT-FT) 70000 54300
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-070800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 10 20
TEMP (24H TREND) 73 (-2) 91 (+1) 74 92
RH % (24H TREND) 95 (+7) 57 (+1) 92 54
WIND 20FT/EARLY(MPH) E 16 E 19 E 19 E 19
WIND 20FT/LATE(MPH) E 17 SE 19 E 17 SE 19
MIXING HGT(FT-AGL/MSL) 4490 5220
TRANSPORT WND (MPH) SE 20 E 21
VENT RATE (KT-FT) 76330 93960
DISPERSION 5 5
DSI 6 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-070800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 10 10
TEMP (24H TREND) 76 (-2) 86 (+1) 76 86
RH % (24H TREND) 91 (+2) 64 (-8) 90 62
WIND 20FT/EARLY(MPH) E 16 E 19 E 17 E 18
WIND 20FT/LATE(MPH) E 18 E 16 E 17 E 16
MIXING HGT(FT-AGL/MSL) 3500 3530
TRANSPORT WND (MPH) E 21 E 20
VENT RATE (KT-FT) 63000 60010
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-070800-
ST CROIX-
330 PM AST SAT JUN 6 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 50 10 30
TEMP (24H TREND) 76 (-2) 88 (+2) 76 87
RH % (24H TREND) 92 (+1) 63 (-8) 90 62
WIND 20FT/EARLY(MPH) E 16 E 18 E 17 E 18
WIND 20FT/LATE(MPH) E 18 E 16 E 17 E 16
MIXING HGT(FT-AGL/MSL) 4520 4620
TRANSPORT WND (MPH) SE 24 E 20
VENT RATE (KT-FT) 94920 78540
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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